Water / Wastewater

The Water-Wastewater Utility is owned by the City of San Marcos and operates a high quality wastewater treatment plant and water system rated superior by the State of Texas. Roughly 2/3 of the City's water comes from surface water treated at the City's Water Plant under the operation of the Guadalupe-Blanco River Authority. The utility promotes water conservation and works closely with agencies such as the GBRA, the Edwards Aquifer Authority, the Texas Commission on Environmental Quality and other organizations to develop regional water policies.

Help keep water costs down--report a leak.

Report water waste at 512-393-8360.

The City of San Marcos strives to protect the Edwards Aquifer Recharge Zone which lies under the western portion of the city.

  1. Guadalupe St. Improvements - University Drive to Grove St. Public Hearing

    The City of San Marcos Capital Improvements and Engineering Department, in conjunction with the Texas... Read on...
  2. Upcoming Library Events

    Back by popular demand! Animal-loving kids will meet live mammals, birds, and reptiles. Free tickets available at the library starting June 6!Program sponsored in honor of L. Dianne Murray. Read on...
  3. Mural Artists to Meet with Community Members June 20

    The City of San Marcos will host a community gathering with artists Jennifer Khoshbin and Celia Mendoza, who will gather public input on a mural they will create at the... Read on...
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